Method and apparatus for signal conditioning of burst signal

Abstract

In one embodiment, the apparatus includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions and cause the apparatus to perform, receiving, by a receiver in an Optical Line Terminal, OLT, a burst of an upstream signal transmitted in burst mode, adjusting settings for an analog signal conditioning of the received upstream signal; performing the analog signal conditioning of the received upstream signal based on the adjusted settings such that a first compensated signal is provided, obtaining coefficient(s) for a digital signal conditioning of the first compensated signal; performing the digital signal conditioning of the first compensated signal based on the obtained coefficient(s) such that a second compensated signal is provided.

1 . An apparatus, comprising:
 at least one memory configured to store instructions; and   at least one processor configured to execute the instructions and cause the apparatus to perform,
 receiving, by a receiver in an Optical Line Terminal, OLT, a burst of an upstream signal transmitted in burst mode; 
 adjusting settings for an analog signal conditioning of the received upstream signal; 
 performing the analog signal conditioning of the received upstream signal based on the adjusted settings, such that a first compensated signal provided, 
 obtaining coefficient(s) for a digital signal conditioning of the first compensated signal; 
 performing the digital signal conditioning of the first compensated signal based on the obtained coefficient(s) such that a second compensated signal is provided. 
   
     
     
         2 . The apparatus of  claim 1 , wherein the analog and the digital signal conditioning comprises at least one of:
 signal swing conditioning, and   signal offset conditioning.   
     
     
         3 . The apparatus of  claim 1 , wherein
 obtaining a timing information related to the receiving time of the burst;   coordinating the adjusting, the performing of the analog signal conditioning, the obtaining of the coefficient(s), and the performing of the digital signal conditioning based on the timing information.   
     
     
         4 . The apparatus of  claim 1 , wherein the timing information is obtained from a reset signal. 
     
     
         5 . The apparatus of  claim 3 , wherein the timing information is obtained from a signal detection circuitry. 
     
     
         6 . The apparatus of  claim 3 , wherein the apparatus is further caused to perform
 initializing the adjusting based on the timing information.   
     
     
         7 . The apparatus of  claim 3 , wherein the apparatus is further caused to perform:
 initializing the obtaining of the coefficient(s) based on the timing information.   
     
     
         8 . The apparatus of  claim 1 , wherein the apparatus is further caused to perform:
 determining whether the adjusting is completed;   based on determining that the adjusting is completed, initializing the obtaining of the coefficient(s).   
     
     
         9 . The apparatus of  claim 1 , wherein the apparatus is further caused to perform:
 determining whether the adjusting is completed based on the timing information and a duration related to time required for the adjusting.   
     
     
         10 . The apparatus of  claim 8 , wherein the apparatus is further caused to perform:
 determining whether the adjusting is completed based on a signal detection circuitry.   
     
     
         11 . The apparatus of  claim 1 , wherein the apparatus is further caused to perform:
 obtaining the coefficient(s) for the digital signal conditioning by training based on the first compensated signal.   
     
     
         12 . The apparatus of  claim 1 , wherein the apparatus is further caused to perform
 obtaining the coefficient(s) for the digital signal conditioning by loading pre-trained coefficient(s).   
     
     
         13 . The apparatus of  claim 1 , wherein the apparatus is further caused to perform
 performing decoding based on the second compensated signal.   
     
     
         14 . A method, comprising:
 receiving, by a receiver in an Optical Line Terminal, OLT, a burst of an upstream signal transmitted in burst mode;   adjusting settings for an analog signal conditioning of the received upstream signal;   performing the analog signal conditioning of the received upstream signal based on the adjusted settings such that a first compensated signal is provided,   obtaining coefficient(s) for a digital signal conditioning of the first compensated signal;   performing the digital signal conditioning of the first compensated signal based on the obtained coefficient(s) such that a second compensated signal is provided.   
     
     
         15 . A non-transitory computer-readable medium storing instructions, which when executed by a processor, cause an apparatus including the processor to:
 receive, by a receiver in an Optical Line Terminal, OLT, a burst of an upstream signal transmitted in burst mode;   adjust settings for an analog signal conditioning of the received upstream signal;   perform the analog signal conditioning of the received upstream signal based on the adjusted settings such that a first compensated signal is provided,   obtain coefficient(s) for a digital signal conditioning of the first compensated signal;   perform the digital signal conditioning of the first compensated signal based on the obtained coefficient(s) such that a second compensated signal is provided.